Haz-Dust SM-7204 Particulate Monitor
Product Descriptions
The Haz-Dust SM-7204 is a personal, real-time silica monitor, providing immediate identification of problem areas and tasks. Implement controls to reduce exposures to hazardous particulates and then use it to measure the effectiveness of controls moving forward. There’s no further need for two co-located devices – one SM-7204 with built-in compensating pump and pre-weighed filter cassette simultaneously provides real-time particulate readout and gravimetric sampling. The SM-7204 alerts users of approaching thresholds for immediate corrective action. Designed carefully with you in mind, the SM-7204 provides the widest range, lowest detection limit, and best resolution of any personal dust monitor on the market.
• Easy touch screen operation
• Instantaneous, continuous display of TWA, STEL, Minimum, Maximum concentration in mg/m3
• Sensor mounts directly in the breathing zone for a personal sample
• Interchangeable sampling inlets for Inhalable, Thoracic and Respirable measurement
• Can accept pre-weighed and preloaded 25 or 37 mm filter cassettes
• Small and lightweight with integral belt clip
• Operates for over 22 hours using rechargeable Li-Ion battery
• Automatic data logging
• Multiple language options
• Easy to use DustComm Pro Software for data downloading, trend analysis and comprehensive reporting of concentration changes over time
Specifications
The HAZ-DUST SM-7204 optical particulate sensor operates on the principle of near-forward light scattering of infrared radiation. As the airborne particles enter the infrared beam, they scatter the light. The amount of light received by the photodetector is directly proportional to the aerosol concentration. Unique signal processing internally compensates for noise and drift. It immediately and continuously measures the concentration of airborne dust particles and displays the result in mg/m3.
| Accuracy | ±10% to filter gravimetric SAE fine test dust |
| Sensing Range | 0.001 to 500 mg/m3 or 1 to 500,000 µg/m3 |
| Display Resolution | 1 µg/m3 (0.001 mg/m3) |
| Particle Size Range | 0.1 to 10 µm Respirable |
| 0.1 to 50 µm Thoracic | |
| 0.1 to 100 µm Inhalable (IOM) | |
| Measurement Precision | ±0.02 mg/m3 |
| Display | 8.9 cm (3.5 in) colour with auto-dimming |
| Displayed Particle Concentration | Instantaneous, TWA, STEL, Minimum, Maximum |
| Sample Flow Rate | 1 to 5 L/min (adjustable). Auto adjusts for sample head |
| Power | Rechargeable Li-Ion battery |
| Operating Time | ≥22 hours |
| Charging Time | 3 hours, depending on battery state |
| Digital Output | Micro USB |
| Data Storage | 43,200 data points |
| Temperature | Operating: 0 to +50°C (32 to 122°F) |
| Storage: -20 to +70°C (-4 to 158°F) | |
| Dimensions | Case: 8.9 x 5.7 x 12.1 cm (3.5 x 2.25 x 4.75 inches) |
| Sensor: 4.4 x 3.8 (1.75 x 1.5 inches) | |
| Weight | 508 g (1.12 lbs) |
Applications
• construction and demolition sites
• slate mining and slate processing
• potteries, ceramics, ceramic glaze manufacture, brick and tile manufacture
• foundries
• refractory production and cutting
